Originally Posted by
niznai
Look.
What the capacitor does is in my response above. Wether or not it actually keeps the esc cooler or improve acceleration dependes on other variables.
And as I said above, the capacitor I am guessing you talk about (since you didn't specify) is always connected to the battery.
Sorry the capacitor is actually soldered to ESC. There are 4 cables coming out of the ESC. 2 are on their own and the other 2 appear to be connected as the solder coil melt and link the 2. One of the capacitor's leg is soldered to these 2 linked cables and the other leg is soldered to 1 of the independent cables.